Home / 146,823.10-220,234.65-87,628.30

Finding the Fourth Proportional to 146,823.10, 220,234.65 and 87,628.30

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Solution

The fourth proportional to 146,823.10, 220,234.65 and 87,628.30 is: 131,442.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,823.10 : 220,234.65 = 87,628.30 : x
  2. Step 2: Convert to fraction form
    146,823.10/220,234.65 = 87,628.30/x
  3. Step 3: Cross multiply
    146,823.10x = 220,234.65 × 87,628.30
  4. Step 4: Simplify right side
    146,823.10x = 19,298,787,980.60
  5. Step 5: Solve for x
    x = 19,298,787,980.60/146,823.10
  6. Step 6: Final answer
    x = 131,442.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.